At Wolverhampton Crown Court, Mark Cotter QC, representing Williams, asked the woman whether she could order her memories from the night.

The woman, who cannot be named for legal reasons, said: "It's not impossible, I could give it a good guess. The memories I do have, I know took place."

She said she remembered kissing a female friend in the nightclub and her friend "grinding" on Williams' lap, but had no memory of sitting on his lap herself before they travelled in a taxi to his hotel.

The complainant told jurors she returned to the singer's room to find her phone and not because she wanted to have sex with him.

She also rejected claims from Mr Cotter that it was a consensual encounter that ended when he was "unable to perform" sexually.

The court heard her friend asked somebody to get help, leading to police attending the hotel.